Optimization of dye-sensitized solar cells prepared by compression method
2002 (English)In: Journal of Photochemistry and Photobiology A: Chemistry, ISSN 1010-6030, Vol. 148, no 03-jan, 11-15 p.Article in journal (Refereed) Published
Nanostructured TiO2 films have been deposited onto conducting glass and on flexible conducting plastic substrates using a compression technique. Dye-sensitized solar cells prepared from Degussa P25 TiO2 powder, red dye (Ru(dcbpy)(2)(SCN)(2)) or black dye (Ru(tcterpy)(SCN)(3)) and an electrolyte containing LiI and I-2 in 3-methoxypropionitrile were tested using standard photoelectrochemical techniques. The average overall efficiency of small open cells sensitized with the red dye on plastic substrates was 4.5% (100W m(-2)). In a direct comparison, red and black dye gave about the same efficiencies. For both dyes, addition of 4-tert-butylpyridine to the electrolyte resulted in a decreased IPCE response in the whole spectral range, with a specific decrease in the red region, which is attributed to a shift in the conduction band edge of the nano structured TiO2.
Place, publisher, year, edition, pages
2002. Vol. 148, no 03-jan, 11-15 p.
nanostructured, TiO2, dye-sensitization, solar cell, press, tio2 electrodes, nanocrystalline, films, complexes
IdentifiersURN: urn:nbn:se:kth:diva-21652ISI: 000176497700003OAI: oai:DiVA.org:kth-21652DiVA: diva2:340350
QC 201005252010-08-102010-08-10Bibliographically approved